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physical change
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Physical change
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
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physical change
Noun
1. a change from one state (solid or liquid or gas) to another without a change in chemical composition
(synonym) phase change, phase transition, state change
(hypernym) natural process, natural action, action, activity
(hyponym) freeze, freezing
